Wide-Area Larviciding with a Buffalo Turbine® Mist Sprayer and Vectolex® WDG

Author:

Runde Amy1,Henry Marlon1,Clifton Mark E.1

Affiliation:

1. North Shore Mosquito Abatement District, 117 Northfield Road, Northfield, IL 60093

Abstract

ABSTRACTWide-Area Larviciding techniques (WALS™) using aqueous suspensions of Bacillus thuringiensis israelensis and various types of mist sprayers have typically been employed against container-inhabiting species of mosquitoes such as Aedes albopictus and Ae. aegypti in urban peridomestic environments. However, relatively little work has been done to examine the use of WALS-applied aqueous suspensions of Lysinibacillus sphaericus (Ls) against susceptible species of mosquitoes in larger natural habitats such as forest pools, floodwaters, and marshes. This study characterized the spray of an aqueous suspension of VectoLex® WDG (Ls) dispersed with a Buffalo Turbine® Mist Sprayer retrofitted with a Micronair rotary atomizer. The results indicate that when VectoLex WDG is applied similarly to traditional urban WALS methodologies, this material is highly effective at reducing larval mosquito populations in areas holding floodwater (an average 88.5% reduction over 6 wk).

Publisher

American Mosquito Control Association

Subject

Insect Science,Public Health, Environmental and Occupational Health,General Medicine,Ecology, Evolution, Behavior and Systematics

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